<!DOCTYPE HTML>
<html>
  <head>
    <title>Test whether we can disconnect an AudioNode</title>
    <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
    <script type="text/javascript" src="webaudio.js"></script>
    <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
  </head>
  <body>
    <pre id="test">
      <script class="testbody" type="text/javascript">
      var ctx = new AudioContext();
      var sourceBuffer = ctx.createBuffer(2, 256, ctx.sampleRate);
      for (var i = 1; i <= 2; i++) {
        var data = sourceBuffer.getChannelData(i-1);
        for (var j = 0; j < data.length; j++) {
            data[j] = i;
        }
      }

      var source = ctx.createBufferSource();
      source.buffer = sourceBuffer;

      var gain1 = ctx.createGain();
      var splitter = ctx.createChannelSplitter(2);
      var merger = ctx.createChannelMerger(2);
      var gain2 = ctx.createGain();
      var gain3 = ctx.createGain();

      gain1.connect(splitter);
      splitter.connect(gain2, 0);
      splitter.connect(gain3, 1);
      splitter.connect(merger, 0, 0);
      splitter.connect(merger, 1, 1);
      gain2.connect(gain3);
      gain3.connect(ctx.destination);
      merger.connect(ctx.destination);

      expectException(function() {
          splitter.disconnect(2);
      }, DOMException.INDEX_SIZE_ERR);

      expectNoException(function() {
        splitter.disconnect(1);
        splitter.disconnect(1);
      });

      expectException(function() {
        gain1.disconnect(gain2);
      }, DOMException.INVALID_ACCESS_ERR);

      expectException(function() {
        gain1.disconnect(gain3);
        ok(false, 'Should get InvalidAccessError exception');
      }, DOMException.INVALID_ACCESS_ERR);

      expectException(function() {
        splitter.disconnect(gain2, 2);
      }, DOMException.INDEX_SIZE_ERR);

      expectException(function() {
        splitter.disconnect(gain1, 0);
      }, DOMException.INVALID_ACCESS_ERR);

      expectException(function() {
        splitter.disconnect(gain3, 0, 0);
      }, DOMException.INVALID_ACCESS_ERR);

      expectException(function() {
        splitter.disconnect(merger, 3, 0);
      }, DOMException.INDEX_SIZE_ERR);
      </script>
    </pre>
  </body>
</html>
